Appendix A - Ups Prompts And Alarms; Prompt Window; Ups Alarm Message List; Table 16 Ups Prompts And Meanings - Vertiv Liebert ITA2-08KRT208 User Manual

APPENDIX A - UPS PROMPTS AND ALARMS

A.1

Prompt Window

A prompt window is displayed during the operation of the system to alert you to certain
conditions and/or to require confirmation of a command or other operation. Table 16 lists the
prompts and meanings.
Table 16 UPS prompts and meanings
Prompt
System setting is different, please
check
Cannot set this on-line, please shut
down output
Incorrect password, please input
again
Operation failed, condition is not
met
Password changed OK
Fail to change password, please try
again
The time cannot be earlier than
system time
Turn on failed, condition is not met
Please disconnect power, check
output: 1 phase, 3 phase, then
power UPS On
A.2 UPS Alarm Message List
Table 17 lists all UPS alarm messages based on the Current and History menus.
Table 17 UPS alarm messages
Alarm message
Communication fail
Rectifier fault
DC/DC fault
DC bus abnormal
Charger fault
Aux. power fault
Input back-feed
Inverter fault
Output short
Bypass backfeed
Output off, voltage is not zero
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® ™
Meaning
Appears when the parallel parameters are different.
If the user wants to change some important settings under condition of output
(output voltage, output frequency, output phase No.), the prompt will appear
Appears when the user incorrectly inputs the Settings password
Appears when the user wants to execute a certain operation but conditions are not
met
Appears when the user successfully change the Settings password
Appears when the user tries to change the Settings password but input two different
new passwords
Appears when the user sets the time of 'Turn on delay' or 'Turn off delay' is earlier
than the current system time.
When users press the power button (or execute the command of 'Turn on/Turn off/to
Bypass' under 'Control' Screen), the prompt will appear
Appears when the output phase is changed. The system requires the user to power
Off and check the cable connections, then power On the UPS again to guarantee the
safety.
Description
Internal communication is abnormal; verify that the communication cables are connected
correctly.
A rectifier fault has been detected.
The battery charger has a fault.
The DC bus has a fault. The load will transfer to bypass if the bypass is available.
The charger output voltage is abnormal, and the charger is Off.
The auxiliary power output voltage exceeds the normal range.
A rectifier short circuit is detected while in Battery Mode.
The inverter is Off when the inverter output voltage and current exceed the setting range.
If bypass is available, the UPS will transfer to bypass mode, otherwise the system will
power Off.
Check that the output cables are not shorted.
A bypass short circuit is detected while in Battery mode.
When there is no output, the system detects that the output has a voltage.
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